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What is never mentioned is "why" that, as a group, we hold so little monetary value. I would submit that the answer lies within Maslow's hierarchy of needs which indicates that the "need for art" lies at the top of the "need pyramid".
Everything below that tier is more fiscally rewarded in society. "Satisfaction of life aside"...recall that pyramid when your advice is solicited for career guidance.
What happens at the bottom of Maslow? Food, shelter, etc. What happens to those jobs? They seem to be rationalized, taken over by machines, outsourced to low-cost countries and offer little pay.
My ancestors were probably hunter/gatherers. Then they became farmers. Then they became industrial workers. Then office workers. The development seems to be towards more specialisation, more skill/education, further removed from basic needs.
It used to be that large parts of the population were farmers, in order to feed the population. In other words, each farmer could only produce enough food for his family and a few more people, meaning that you needed lots of them. Today, only a small percentage of the population are farmers.
If you extrapolate this, I predict that at some point in the future, our offspring will all be writing poems and playing the flute (possibly while getting maximum exposure in tv reality-shows) to make a living and to attract mates, while "trivial" aspects of society will be done by machines :-)
-h